Steel



Reissued Nov. 15, 1938 m-ms STEEL WOOLPAD Elmer R. Martin, Springfield, 'Ohio, assignor to The Williams (Jompany, 'London, Ohio, a corporation of I Ohio Original No. 2,123,338, 'dated July 12, 1938, Serial No. 56,648, December 30, 1935.

Application for reissue'September 1, 1938, Serial No. 228,002 "l-Ciaims. (01.15430) This invention relates to steel wool-pads, but particularly to steel wool pads for floor surfacing operations, and an object is to produce a simple and efficient steel wool pad for floor surfacing use which will satisfactorily retain its shape and will operate satisfactorilyover an extended period of time. v

Another object is to provide a steel woolpad in the form of an annulus, the peripheral edge portion of which is increased in thickness and adequately reinforced so that the strands are properly held in position.

A further object is to produce asteel wool pad adapted to be disposed between the rotating element of a floor surfacing machine and thesur face upon which work is to be done so that the pad is rotated by such member, the pad being thickened and reinforced at its peripheral edge portion for accomplishing most eflicient results.

Further objects of the invention will hereinafter appear, and an embodiment of the invention is shown in the accompanying drawing, in which:

Figure 1 is a side elevation partly in section of a mandrel showing the manner in which the steel wool ribbon is wound:

Figure 2 is a transverse sectional elevation on the line 2-2 of Figure 1;

Figure 3 is a plan view of a portion of the steel wool annulus showing the manner in which the inner edge portion is secured and the outer portion reinforced; and

Figure 4 is a vertical sectional view of a steel wool annulus showing it disposed beneath the rotating brush of a floor surfacing machine.

Referring to the drawing, a single length of steel wool ribbon I is wound in overlapping relation helically upon a longitudinally extending mandrel consisting of a bar H, which has diametrically opposed web portions l2 and I3, on the ends of which are flanges I4 and I5, respectively. The flange I4 is considerably smaller than the flange I5, and is provided with a groove I6 to receive a tying cord Il.

The flange I is a relatively wide and shallow, and is co-extensive with the flange I6. Disposed upon the flange I5 is a relatively large steel wool cord I8. The length of the tying cord I7 and reinforcing steel wool cord I8, will depend upon the desired size of the steel wool pad, and, after sufficient length of-steel wool ribbon III has been wound about the mandrel and the cords I! and Hi, the cords having been anchored at their oppositeends in any suitable manner, the steel wool cord and the tying cord are stripped from the mandrel. Thereupon the body is shaped into the form of an annulus, preferably by drawing the tying cord I'l about a hub or sleeve of the proper diameter and tying the ends of the cord.

Thefree ends of the reinforcing steel wool cord I8 are then drawn together, overlapped, and twisted, as indicated at I9. Thereupon, the steel woolribbon is placed evenly over the ends of the tying'cord and reinforcing cord so that in its finished form, the body presents substantially an unbroken annulus.

The steel wool ribbon I8 may be of any desired grade, depending upon the use to which the pad isto be put, and the width of the ribbon may be varied as desired. The pad in use is placed between the rotating brush B of a floor surfacing machine F and the surface to be worked upon, the brush contacting and resting upon the top surface of the steel wool pad, and as the brush B rotates, the pad will also rotate.

It will be seen that the pad is substantially flat and that the looped ends of the ribbon are disposed on the outer peripheral edge and the inner edge, the reinforcing cord I8 being disposed between the layers and serving not only to reinforce the pad in the region of its peripheral edge, but also to thicken it at that place so that the outer portion of the pad, which moves at greater linear speed, will perform a more satisfactory abrading operation.

Inasmuch as pads of this character work best when used with rotating brushes, and since the latter wear first on the outer portion, without increasing the thickness of the pad in the region of its outer'edge, the steel wool pad would not perform the work so efiiciently. The steel wool cord I8, therefore, not only affords a reinforcement for the outer edge portion of the pad, keeping the steel wool strands in their proper position, but also brings into contact with the floor surface that area which accomplishes most of the work.

A pad of this character is particularly useful in the re-surfacing of floors, or similar surfaces, as well as cleaning and-scouring them. After one side of the pad has been Worn, it may be turned over so that the other side can be used. It is much more convenient to handle than bulk steel wool, and is available instantly for use.

It is to be understood that numerous changes in details of construction, arrangement, and choice of materials, may be effected without departing from the spirit of the invention, especially as defined in the appended claims.

What I claim as new and desire to secure by Letters Patent is:

edge portion thereof as compared to the inner; 1

edge portion.

2. A steel wool pad comprising an insures composed of layers of steelwool ribbon withthestrands thereof disposed radially and having loop portions at the peripheral edge and at the inner edge, tie means extending throughthe loop portions at the inner edge, and a steelnvool member.

disposed within the loop portions at the outer edge portion for increasing the thickness of the pad in that region. I

3. A steel wool pad comprising .an annulus composed of layers of steel wool ribbon with the strands thereof disposed'radially and having loop portions at the peripheral edge and at the inner edge, a tie member extending within the loop portions at the inner edge of the annulus, and steel wool meansat the outer edge portion for holding the loops and strandsin place.

4. A steel wool pad comprising an annulus composed of layers of steel wool ribbon with the strands thereof disposed radiallyand having loop portions at the peripheral edge and at the inner edge, a tie member extending within the loop portions at the inner edge of the annulus, and means at the outer edge portion 'for holding the loopsand'strands in place and for increasingthe thickness of the pad in the peripheral region thereof.

5. A steel wool pad comprising an annulus composed of layers of steel wool ribbon with the strands thereof disposed radially and having loop portions at the peripheral edge and at the inner edge, a tying cord extending through the loop portions at the inner edge, and a steel wool cord disposed within the loop portions at the peripheral edge portion, said steel wool cord being of greater cross sectional area than that of said P rtion.

6. A steel wool pad comprising an annulus of steel wool strands extending from the :inner edge portion to the peripheral edge portion thereof and having loop portions at the peripheral edge'and inner edge, tie means extending through the loop portions at the inner edge, and means carried by the annulus and ex- 1 within the loop portions at the peripheral edge for increasing the thickness of the peripheral edge portion thereof as compared to the inner edge portion.

7. A steel wool pad comprising an annulus composed of steel wool strands extending from the inner edge portion 'to the peripheral edge portion thereof and having loop portions at the peripheral edge and inner edge, a tying cord extending through the loop portions at the inner edge having the ends thereof secured together, and a steel wool cord disposed within the loop portions at the peripheral edge portion, said steel wool cord being of greater cross sectional area than that of said tying cord thereby to increase the, thickness of the pad in the region of the peripheral edge portion.

ELMER R. MARTIN. 

